TY  - BOOK
AU  -  Hal Van Ryswyk et al...
TI  - Estimating Quantum Dot Size with Pulsed Field Gradient NMR
:   (Journal Article)
T2  - American Chemical Society, Volume 100, Issue 5
SN  - 0021-9584
U1  - 540.7 
PY  - 2023///
CY  - USA
PB  - :American Chemical Society
KW  - Upper-Division Undergraduate
KW  - Inorganic Chemistry
KW  - Physical Chemistry
KW  - Interdisciplinary/Multidisciplinary
KW  - Laboratory Instruction
KW  -  Hands-On Learning/Manipulatives
KW  - UV−Vis Spectroscopy
N1  - ***______{For Hard Copy, Please visit Library.}________***
N2  - Abstract-
 

 Pulsed field gradient nuclear magnetic resonance (NMR) is used to estimate the size of quantum dots (QDs) produced in a simple, fast, small-scale synthesis. This upper-division laboratory experiment teaches the basics of QD synthesis and pulsed field gradient NMR, a powerful technique for measuring diffusion coefficients in solution. The diffusion coefficients are used to calculate hydrodynamic radii, which are compared to core radii obtained from optical absorbance sizing curves, providing insight into the structure of QDs in colloidal suspension and the nature of the information provided by pulsed field gradient NMR.









 





UR  - https://doi.org/10.1021/acs.jchemed.3c00155
ER  -